Future Technology Devices
International Limited (FTDI) announced the availability of their TTL-232RG
family of USB to TTL serial UART converter cables. The TTL-232RG cables build
upon the existing FTDI family of USB to TTL cables, by offering new versions to
support an extended variety of voltage I/O levels. The cables feature a USB to
serial converter PCB encapsulated within a standard type 'A' USB connector with
a wire-ended asynchronous UART output. The cables are aimed at providing USB
connectivity within applications with serial UART ports. The cables provide a
fast and simple method for enabling USB connectivity in such applications, with
minimal changes to existing user software.
The cables derive power from the USB interface and have integrated voltage
regulators removing the need for designers to provide external power or have
voltage level shifters on their boards. Further, the cables can be used to
provide an optional power output ranging between +1.8 V and +5.0V for powering
The TTL-232RG cables feature the FTDI FT232R USB 2.0 to UART converter IC with
associated circuitry integrated within the cable USB connector. The FT232R
manages the complete USB protocol within the device - meaning that no user
knowledge of USB is required. The UART interface supports data transfers at up
to 3 Mbps. Using the FTDI's Virtual COM Port (VCP) drivers, users can easily
access the UART interface as a (virtual) COM port with existing software
applications, removing the need for any redesign. The FTDI D2XX drivers are
also available to support application development using high-level software
languages. FTDI's royalty free drivers include Microsoft WHQL certified drivers
for Window based operating systems, as well as drivers for Linux and Mac OS
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